Absence of brightly fluorescent Y material in XX men.
D003582:Cytogenetics; D005453:Fluorescence; D006801:Humans; D007621:Karyotyping; D008297:Male; D008722:Methods; D009149:Mustard Plant; D010946:Plants, Medicinal; D011796:Quinacrine; D012729:Sex Chromosome Aberrations; D012730:Sex Chromosomes
D011796:Quinacrine